pac face
A face you make when you think someone is too stupid to be from the Pacific Islands and you’re not going to let them forget it.
'He did the pac face when I told him I was going to the islands and he thought I was joking.'
'She gave me the pac face when I said I knew more about coconuts than she did.'
'My brother did the pac face when I said I was going to be a surfer and he was just going to sit on the couch.'